Separable fastener



Dec. 31, 1929. w. D. PEIFFER r-:T AL 1,741,789

` SEPARABLE FASTENER Filed June 16 1926 gzf. W15 21. www;

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y ing cam.

'WILLIAM D. PEIFFER AND OBEN Patented Dec. n 31, 1929 D. HARRIS, 0F MISHAWAKA,. INDIANA,A`SASIGNORS OIS ONE-THIRD TON. AMSTUFZ, OF VALPARAISO, INDIANA.

SEPARABLE FASTENER Application filed June 16,\LQ26. Serial N o. 116,267.

Our invention relates to improvements in separablefasteners and itfmore especially consists of the features pointed Vout in the annexed claims.

The purpose of our invention is to provide 'a separable fastener that is iieXibly connected -so that it cannot b e disengaged when a group of. attached fasteners are curved crosswise or lengthwise of the adjacent edges that are held in engagement by the fasteners; that has double` edged reinforcing beads along the edges of the object; that has double gripping points on the fasteners; that has self-cleaning eyes on one half of the fasteners; that has a.

one-piece die-cast sliding cam for operating the fasteners; that has rounded engaging projections on one-half of the fasteners; that has a iush hinged operating clasp for moving the sliding cam; and that also .providesa suitable stop `to limit the movement of the slider.

With these and other ends in view, we illustrate in the accompanying drawing vsuch instances of adapta-tion as will disclose the broad underlying features of our invention without limiting ourselves tothe specific details shown thereon and described herein.

Figure 1 is a front elevation of a separable fastener in operative position.

Fig. 2 is a detached isometric View of the sliding cam.

Fig. 3 is an elevation in section on the vertical center line of Fig. 1. Y

'. Fig. 4c is a side elevation of a detached slid- Fig. 5 is a front elevation of Fig. 4.

Fig. 6 is a plan view in section on line 6-6 of Fig. 3. Fig. 7 is an enlarged section of a pair of reinforcing cords attached to one ofy the edges of an object which is to be closed.

"F ig. 8 is an enlarged front elevation of Fig.

1 showing the two edges and their reinforcing cord in section.

Fig. 9 is an elevation of a pair of stringers.

Fig. 10 is a plan view in section of Fig. 9.

Fig. 11 is a diagrammatic elevation of a group of stringers showing how they are engaged and disengaged with each other.

Fig. 12 is a diagrammatic elevation in section showing how the stringers remain enheretofore. vgation we have been unable to find any so gaged when a group of adjacent stringers is curved lengthwise of the fastening edges. F 1g. 13 1s a diagrammatic elevation in sec- `tion of a group of adjacently positioned stringers curved crosswise of thev fastening edges showing in Figs. 11 and 12 the security and flexibility of our stringers.

Fig. 14 is an isometric view of an open-eye Stringer with its fastening end closed.

. Fig. 15 isjan isometric'view of a hook-ended Stringer with its fastening end closed.

In putting our invention into actual use We lmay adapt whatever alternatives of shape,

dimension, and materials as will meet the exigencies of practical use without departing from the broad spirit of our invention.

We are aware that separable fasteners have been devised in the past and we are also aware that various and sundry l exact forms and shapes of stringers have been made the subject of dierent patents. We do not believe that-a fastener of our type has been known From observation and investicalled separable fasteners that are proof against disengagement when the edges to which the stringers are attached, are curved at a fairly short radius lengthwise of the edges. Other fasteners remain engaged fairly well when the edges are curved erosswise but we are not aware that any separable fastener is able to hold its stringers securely in engagement against detachment from each otherwhen the edges are curved lengthwise. Furthermore,` in order that the fasteners may be securely held to the fabric, we provide four gripping points on each Stringer. These 'gripping points securely hold the fasteners on the edges with the reinforcing cords and the fabric of the edges between them. This construction gives twice the support for each stringer than has been secured heretofore by other constructions.

A. slider or sliding cam 1 of the Y shape is used to draw `the edges of an object toward each other when moved in one direction and to separate them when moved in the other direction. It comprises two flat members, one formin the top andthe other the bottom. Each of these members have anges 9 formed thereon which project toward each other and are spaced apart by an integrally formed support 10 shown in Fig. 6. rIhis support is V shaped, terminating in a point 7 On each side of the support channels are formed, the one on the right hand side being designated by the numeral 4 and the one on the left hand side by the numeral 5. The support 10, in cluding the top and bottom portions with their flanges 9, may be formed in one piece by any desired die-casting method, or otherwise. The flanges 9 on each edge of the sliding cam, are spaced apart so as to form slots 8 through which the edges 2 and 3 may freely pass, while the fasteners 13 and 14 are held under the control of the fianges 9 when they are interlocked in the straight channel 6 of the slider. When the frontends of the fasteners engage the integral support 10 andare carried respectiveljy into the channels 4 and 5, the edges 2 and 3 are entirely separated, remaining so until the slider'is moved into the opposite direction. The cross bar 26 oining both edges may form a limit stop where the edges 2 and 3 join each other land suitable studs 27 may form limit stops at the lupper edges 2 and 3.

The slider has a recess formed in the integral support 10 in which a hinged clasp 11 is pivote which may be pulled out as shown in dotted lines in Fig. 4 so as to facilitate the easy movement of the slider.

The edges 2 and 3 may be formed of a narrow fabric folded onto the reinforcing cords 12, on the body 23 of the shoe or garment. These edges may be stitched at 24 between the cords 12 andagain at 25 to the body 23. l |The edges 2 and 3 may be more or less elastic and the cords 12 more or less rigid as desired.

Open-eyed fasteners 13 are secured to the edge 3 in spaced apart relation and hook-ended fasteners 14 are secured to the edge 2 in spaced apart relation in alternate sequence to the fasteners 13.

In respect of their fastening ends, these fasteners 13 and 14 may be considered as duplicates. two interconnected openings 19 and 20, which at the intersections ofthe openings have inner gripping points 21 and at the extreme outer end, gripping points 22, these gripping points provide double security against fasteners becoming separated from the edges to which they are secured. Before the fas`` teners are assembled, the fastening ends are in the open relation shown in Fig. 9. They are shown in their closed relation in Figs. 14 and 15. The fasteners 13 may have a square opening or eye 15 formed parallel with the gripping points 21 and 22. The front end of these fasteners is beveled at 18 perpendicular to the opening 15 andthe fasteners 14 have a rounded hook 16 as shown in Fig. 9 and a rounded front end 17 as shown in Fig. 10.

The special importance of the eye 15, the rounded hook 16, and the rounded ends 17,

These fastening ends are formed with will be seen by examining Figs. 12 and 13. Heretofore fasteners have been made duplicates of each other with beveled closed recesses and correspondingly beveled hook ends which caused them to easily disengage when a group of fasteners and their attached edges were curved lengthwise of the edges as shown in Fig. 12.

What I claim is:

1. In separable fasteners, an edged fabric or body, a plurality of reinforcing cords thereinand a plurality of fasteners attached to the edge in spaced apart relation by means of a plurality of gripping teeth overlapping the reinforcing cords and engaging both faces of the edged fabric.

2. In separable fasteners, an'edged fabric or body, a similar edged fabric or body, a plurality of reinforcing cords in each edge, a series of open-eyed fasteners attached in spaced apart relation to one of the edges by means of a plurality of gripping points formed on each fastener engaging the edged fabric surrounding the reinforcing cords, and a series of hook-ended fasteners similarly attached in spaced apart relation to the other edge the respective fasteners positioned in alternate sequence cooperating when in engagement with each other to hold the edges against separation.

3. In a fastener for detachably uniting the adjacent edges of a suitable fabric or body, a pair of fasteners comprising a relatively flat body of approximately rectangular cross section, one member of each pair having an openeye therethrough and the companion member having a rounded projection from the flat side of the body adapted to engage the open-eye of the first named member, the other end of each member being formed with the cord receiving recesses having a plurality of gripping teeth at the entrance to each of said recesses, in combination with reinforcements in the edges of the body adapted to be received in the recesses of the fasteners and engaged by the gripping teeth.

4. In separable fasteners, a pair of cooperating series of fasteners constituting separate sets respectively secured to the adjacent edges of a pair of sheets such fasteners comprising relatively flat members, provided with jaws, reinforcing stringers in the edges of each sheet onto which the jaws are crimped, each fastener of one set having a cylindrical projection perpendicular to one face, and each fastener of the cooperating set" being provided with an opening near its front end formed transverse of the body of the fastener with its walls parallel to the cylindrical projection.

5. In separable fasteners, an integrally formed sliding cam having a plurality of diverging channels formed therein, a recess in one face, and a hinged clasp positioned inthe ilo recess so as to close flush with the body of the sliding cam.

6. In a fastener for detachably uniting the adjacent edges of a pair of imperforate sheets, a row of plug links secured along the 'edge of one of said sheets, a rowor socket links secured along the edge of the other sheet and interlocking with the links of the first row, a runner member for locking and unlocking said rows of links, each link having means :for securing it to one of said sheets, the edge of each sheet being reinforced by a tape, and a pair of stringers located within said tape for reinforcing the edge thereof and for supporting said links, said links engaging the outside of said sheets only.`

7. In a fastener for detachably uniting the adjacent edges of va pair of sheets, a row of fplug links secured along the edge of one of said sheets, a row of socket links secured along the edge of the other sheet and interlocking with the links of the first row, a runner member for locking and unlockingsaid rows of links, each of said links havin a' pair of initially divergent jaws for em raclng one of said sheets and crimped thereon, each of said jaws having a pair of teeth to engage the material of said sheets, the edge of each sheet being reinforced by a pair'of stringers, and the teeth of said jaws embracing said stringers after said jaws have been crimped together.

8. In a fastener for detachably uniting the adjacent edges of a pair of mperforate sheets, a row of plug'links secured along the edge of one of said sheets, a row of socket links secured along the edge of the other sheet and interloccking with the links of the first row, a runner member for locking and unlocking said rows of links, each link having means for securing it upon the outside of one of said sheets, the edge of each sheet being reinforced by a tape, and a pair of spaced parallel stringers located within said tape for reinforcing the edge thereof and for supporting said links. l

In testimony whereof we ax our signa;

tures.

WILLIAM D. PEIFFER. OREN D. 'HARRIS 

